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WO2020030402A1 - Équipement d'éclairage pouvant fonctionner en tension double - Google Patents

Équipement d'éclairage pouvant fonctionner en tension double Download PDF

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Publication number
WO2020030402A1
WO2020030402A1 PCT/EP2019/069408 EP2019069408W WO2020030402A1 WO 2020030402 A1 WO2020030402 A1 WO 2020030402A1 EP 2019069408 W EP2019069408 W EP 2019069408W WO 2020030402 A1 WO2020030402 A1 WO 2020030402A1
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WO
WIPO (PCT)
Prior art keywords
lighting device
leds
voltage
bridge
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2019/069408
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German (de)
English (en)
Inventor
Burkhard Herbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2020030402A1 publication Critical patent/WO2020030402A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/42—Antiparallel configurations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • the invention relates to a lighting device according to the preamble of claim 1.
  • LED lighting devices are known from practice. For example, they are commercially available in the form of so-called LED strips or LED strips, whereby LED strips can have a dimensionally stable support and the so-called LED strips can have flexible supports, so that they are stored on a roll, for example can.
  • the LED strips are offered, for example, in lengths of 1 m each, and the LED strips in lengths of several meters, e.g. B. 5m each on a roll.
  • the contact points on the carrier can only be loaded with a predetermined maximum current.
  • the configuration options of a lighting device are therefore limits are set by the intended light output and the associated high current consumption. Accordingly, by using a lighting device with a higher operating voltage, more sections can be connected to one another or a longer section of an LED strip can be used with only a single voltage supply.
  • LED lighting devices with otherwise the same properties as e.g. B. color temperature, light output u. Similar available in versions that differ in the required power supply. LED lighting devices are available for connection to 12 V and 24 V power supplies.
  • Lighting devices are known from DE 10 2006 024 607 A1, EP 3 277 056 A1, CN 2 886 978 U, CN 102065610 A and CN 106912138 A, which contain electronic controls or circuits which are dependent Make an automatic adjustment of the applied operating voltage so that the voltage supplied to the LEDs is in a predetermined range.
  • the object of the invention is to improve a generic lighting device such that the lighting device can be produced as economically as possible and can optionally be used with different operating voltages and maintains the same lighting devices such as color temperature and light intensity in both operating modes.
  • the invention proposes to arrange the conductor tracks on the carrier of the lighting device and to connect the individual groups of the LEDs to the conductor tracks in such a way that simply by using a bridge or by omitting the corresponding electrical bridge the circuit arrangement which is achieved with the conductor tracks either switches the LED groups in series in such a way that there is a higher voltage drop and the lighting device can be used with a correspondingly higher operating voltage, or in the other case some of the LEDs Groups are operated in parallel, so that in this case the lighting device can be operated with a lower voltage but with a higher current consumption, so that the same power consumption continues to take place and the light intensity provided by the lighting device is unchanged is.
  • a proposed lighting device which contains LEDs and their series resistors in a known manner, can be proposed with practically unchanged costs and without such a circuit be produced, for example in the form of a rigid or flexible LED strip. Only the conductor tracks run so cleverly that, depending on which contacts are used to connect the voltage supply, the lighting device can optionally be operated with one of two different voltages.
  • a proposed lighting device offers the advantage of lower storage costs, because it is not necessary to provide two variants of an otherwise identical lighting device in terms of lighting requirements, which differ only in terms of their voltage supply.
  • faster availability may be advantageous, because the lighting device can be used with the energy converters that may already be available to the user or that are in stock in retail stores. These can be the so-called transformers or drivers or ballasts, which, for example,
  • the improved adaptability of a proposed lighting device is advantageous for the user because these integrate particularly easily into different environments or technical infrastructures leaves due to the adaptation to different operating voltages.
  • a simple technical configuration of the proposed lighting device can be made possible by providing two continuous additional conductors parallel to the LED circuits, that is to say conductor tracks which run separately from one another and which may or may not be connected by means of a bridge.
  • a technically simple configuration of the lighting device which enables excellent adaptation to different voltage supplies that are customary in practice, can be made possible by the fact that the two operating voltages of the lighting device differ by a factor of 2, so that the second, higher voltage is twice as high as the first voltage with which the lighting device can be operated.
  • additional conductor tracks provision can also be made to enable more than just two different operating voltages for the lighting device. For example, doubling of the operating can be provided depending on the connection, so that the lighting device can be operated with 12, 24 or 48 V, for example.
  • the lighting device only has lighting LEDs which are of the same color.
  • multicolored LEDs or multicolored LEDs that enable a color change can be provided as lighting LEDs. Irrespective of these LEDs provided for the lighting, the lighting device can also have further LEDs, for example LEDs, which are not used for lighting purposes but rather for signaling purposes.
  • colored LEDs can be provided as signal LEDs in order to indicate the operating state of the lighting device, for example to indicate which operating voltage is present, or whether an operating voltage is present at all and the lighting device is in standby mode, for example, or whether it is - at correspondingly extinguished signaling LED - completely disconnected from the mains.
  • the lighting device can either be operated with the external ballast or driver for voltage conversion mentioned, or it can be equipped particularly advantageously on the carrier with current limiters, so that particularly advantageously over the length of comparable long carriers for the rear LEDs in the electrical circuit same power supply can be guaranteed and thus the same light intensity as for the LEDs closer to the power supply.
  • these current limiters can be configured as current sources arranged on the carrier. be designed, each of these current sources being connected to several LEDs for economic reasons.
  • the lighting device can be designed in a manner known per se such that it can be operated using a 2-wire technology. Even when the lighting device is connected to a supply voltage via only two conductors, it can be made possible in a manner known per se that the lighting device can be dimmed, for example, or a mixture in the case of differently colored LEDs, for example with two different white LED types of the two different color temperatures.
  • the lighting device can advantageously be shortened at certain intervals. This is known per se from the LED strips or LED strips.
  • the carriers are each designed as a circuit board and equipped with current limiters, for example with series resistors or with current-limiting semiconductors.
  • the conductor tracks have contact points in a manner known per se, so that the lighting device can be severed in the area of these contact points and in this way a lighting device with a shorter overall length can be created, which can also be used unchanged same supply voltage, but a correspondingly lower power consumption can be operated.
  • the bridge mentioned which enables operation with either one of the two different operating voltages by removal or attachment to the lighting device, can advantageously be designed as a plug that can be attached to the carrier. This can be done, for example, by the fact that this bridge can be connected at the end to the carrier or to the lighting device, similar to an end cap. Alternatively, it can be provided that this pluggable bridge can be plugged onto the plug transversely to the surface of the carrier, for example can be plugged into plug contacts located on the carrier.
  • Bridge can be designed as a separate component, which is mounted at a distance from the connector and connects the relevant conductor tracks with each other.
  • This design of the bridge which is independent of the connector, enables several bridges to be installed along the length of the carrier. This can be desirable, for example, in order to avoid an undesirably large voltage drop from the plug to the last LED through which the current flows, given the comparatively small line cross sections of the conductor tracks, since such a voltage drop could, for example, result in the LEDs of the lighting device emit different light, for example different in terms of brightness or color or color temperature.
  • Lighting device can be used.
  • the bridge is configured asymmetrically and the carrier has a matching geometry, so that the bridge can only be arranged on the carrier in the predetermined orientation.
  • the carrier for receiving the bridge can have two bores into which two pins of the bridge can be inserted in order to mount the bridge on the carrier.
  • the two bores are designed differently in such a way that the two pins can only be inserted into the two bores in a single arrangement, namely in the correct alignment of the bridge.
  • two opposing notches can be provided on the two opposite side edges of the carrier, for example a triangular and a rectangular notch, and the bridge can be mounted on the carrier in the manner of a clip, with two opposing holding arms of the bridge each engage in a notch and the holding arms each have the complementary cross section.
  • These pairs of holes are provided at certain intervals along the length of the girder at the factory, so that they can be used to install bridges if required.
  • the lighting device can be used with a combination of bridges: namely, firstly, a bridge can be provided on or in the plug, and secondly one or more independent bridges that are mounted or spaced from the plug . become.
  • a bridge can be provided on or in the plug
  • secondly one or more independent bridges that are mounted or spaced from the plug .
  • the use of the appropriate, jumpered plug means that the installation of the lighting device even in the bridged arrangement without additional installation effort, namely without any additional assembly step.
  • the separate bridges can also be installed.
  • the two bridgeable conductor tracks can advantageously have connections for the bridge designed as plug contacts, in order in this way to make the assembly of the bridge particularly simple.
  • the commercially available LED strips and LED strips known from practice have a predetermined polarity, which makes it necessary to observe this polarity when a number of sections of such LED strips or LED strips are arranged in a row. Cut pieces can therefore only be used or inserted in the same direction as the previous and also the following LED strips in order to create an overall larger lighting device, the multiple sections of LED strips or LED strips having. This applies in particular to those LED strips or LED strips which enable more than one-channel light reproduction, and which are therefore dual or multicolor-capable, eg. B. enable the emission of light with different white color temperatures or with different colors.
  • a crossed course of the conductor tracks can ensure that the contact points are always arranged in the same order at both ends of a section, so that, for example, a certain contact of several contacts of a connector always contacts the same conductor track, regardless of whether this connector is connected to one or the other end of the section.
  • the sections can be attached to other sections in any way without impairing their function. This makes it extremely easy even for laypersons to use such a product and to create an overall longer lighting device from several individual sections.
  • Electrical contacting of the contact points is advantageously effected by means of mechanical connecting pieces, which also bring about a mechanical stability of the connection and thus ensure that the electrical contacting is reliably maintained.
  • a particularly simple handling of the LED lighting device can be supported in that the mechanical connecting pieces are designed so that they can be installed without soldering.
  • the mechanical connectors can, for example, create an electrical and mechanical plug connection together with the contact points of the LED strip or LED strip.
  • the mechanical connection pieces can be configured as insulation displacement connectors known per se.
  • a voltage source can be connected to the lighting device, e.g. B.
  • the mechanical connectors of the voltage sources - e.g. B. the insulation displacement connectors mentioned - can advantageously be preconfigured to adapt to the different intended operating voltages of the lighting device, in that depending on the intended operating voltage they are either already provided with the bridge or do not have this bridge.
  • the LEDs can advantageously be arranged on the carrier in such a way that the LED or the LED group which is adjacent to one end of the carrier is at a smaller distance from this end than from the next LED or LED group on the carrier. If two sections are connected to each other with the help of connecting pieces, which are designed as connecting pieces, the same distance between adjacent LEDs or LED groups causes. The uniformity of light reproduction across the entire lighting device does not change as a result, even if the lighting device consists of two or more sections.
  • the connectors such. B. the insulation displacement connectors mentioned not only effect the electrical contacting of a voltage source with a lighting device or an electrical connection between two lighting devices, but also create a mechanical connection with the respective lighting device.
  • a connection piece can be provided with a pin which engages in a perforation at the connection end of the lighting device.
  • the proposed lighting device has LEDs as the light emitting light.
  • a separation can advantageously take place in the middle of a group.
  • the required length of the strip can thus be granulated even more finely, ie the strip or the band can be divided into a larger number of correspondingly smaller, functional sections, so that the length of the lighting device can be adapted particularly well to a given installation space.
  • the proposed layout of the carrier and the conductor tracks arranged on the carrier is suitable on the one hand for particularly inexpensive and simple LED strips, in which series resistors in each case determine the constant current for the LEDs as a function of the supply voltage.
  • the same layout can be used just as well on modern LED strips with electronic, two-pole power sources. These bands have a much more uniform brightness because the voltage loss can be compensated for LED groups that are further away from the feed point.
  • the proposed layout of the conductor tracks has an even more compensatory effect, because the proposed bridge practically forms a central star point in terms of circuitry, and thus additionally compensates for any smaller, possibly existing, differences between the power sources connected in series, as shown in the successor ging described embodiment is clear.
  • the mentioned star point is at exactly half the supply voltage of 12 V when the lighting device is operated with the second, higher voltage of 24 V.
  • FIG. 1 shows a configuration of a first exemplary embodiment of a lighting device for operation with a supply voltage of 12 V
  • FIG. 2 shows the same lighting device, but which is configured by setting a bridge for operation with a supply voltage of 24 V,
  • FIG. 3 shows a configuration of a second exemplary embodiment of a lighting device for operation with a supply voltage of 12 V, only the area of the feed with the first LEDs connected to it being shown,
  • Fig. 5 shows the follow-up group of Fig. 4, which in a second
  • Fig. 6 is an illustration similar to Fig. 3, the same
  • Embodiment of a lighting device is configured for operation with a supply voltage of 24 V
  • FIGS. 5 and 6 in views similar to FIGS. 5 and 6, and 9 and 10 a further embodiment of follow-on groups of the embodiment of FIG. 6 in views similar to FIGS. 5 and 6.
  • a lighting device is indicated as a whole by 1, which has a carrier 2 designed as a circuit board, on which series resistors 3 and LEDs 4 are arranged to a total of four groups of three LEDs each and connected to one another by conductor tracks 5 are.
  • a voltage source that can be connected to the lighting device 1 and that supplies a voltage of 12 V according to FIG. 1 is indicated by 6 in FIG. 1.
  • two outer, continuous conductor tracks 5 are provided, as well as four each approximately Z-shaped conductor tracks, which connect to these two outer conductor tracks 5 and which the series resistors 3 and the LEDs 4 in each of the four groups connect with each other. While the conductor tracks mentioned up to now could be directly connected to one another in order to enable the lighting device to be operated, two additional conductor tracks are provided in the exemplary embodiment shown, which are referred to as additional conductors 7 and also run continuously.
  • the voltage source 6 is connected in each case to one of the two outer conductor tracks 5, but also in each case to an additional conductor 7, so that the groups of LEDs 4 are operated in the manner of a parallel connection, two such groups in each case being connected antiparallel.
  • the two additional conductors 7 are not connected to one another, but, like those on the outer conductor tracks 5, have contact points 8 which are not directly connected to one another.
  • FIG. 2 shows the same lighting device 1 as in FIG. 1, only the circuit layout being changed in that the additional conductor 7 between two contact points 8 a bridge 9 is set and six LEDs 4 are connected together to form a group.
  • the contact points 8 shown on the far left are bridged, namely where the voltage source 6 is also connected to the lighting device 1.
  • the voltage source 6 is shown differently from the voltage source 6 of FIG. 1 and has a supply voltage that is twice as high as in the voltage source of FIG. 1. While purely exemplary for the exemplary embodiment of FIG 1 the voltage source 12 V can have an operating voltage, the operating voltage of the voltage source 6 of FIG. 2 is accordingly 24 V.
  • the voltage source 6 connects exclusively to the two outer conductor tracks 5, and not directly to the additional conductors 7. Because the additional conductors are connected to one another by the bridge 9, there is a total in comparison to the circuit layout of FIG. 1 Series connection for the lighting device, so that the voltage drop across the entire lighting device 1 according to FIG. 2 is 24 V.
  • the light output of the lighting device 1 is identical in both exemplary embodiments of FIGS. 1 and 2, in view of the different operating voltages, the lighting device 1 is operated in its two different operating states with different current consumption, so that ultimately the power consumption of the lighting device 1 is always the same and thus the light output is also always the same, as is the color temperature of the emitted light.
  • the lighting device 1 is designed to be comparatively short. In the area of the contact points 8 shown on the far right, which sources 6 lie opposite, the lighting device has been severed by an overall much longer support 7, which can be designed, for example, as a flexible circuit board, so that there was originally a much longer lighting device 1, the circuit layout of which is arranged in a row or Multiplication of the drawing layout shown in the drawings is formed.
  • the type of LEDs 4 used is limited to a single type of LEDs in the exemplary embodiment shown purely by way of example. In deviation from the exemplary embodiment shown, LEDs with different color temperatures or with different colors can be used.
  • operation with two different operating voltages which differ by a factor of 2 is possible when using the same lighting device. If the LED groups are connected differently, operation with supply voltages that differ from one another by factors other than a factor of two may also be possible.
  • FIGS. 1 and 2 can be seen from the course of the conductor tracks 5, in the exemplary embodiment shown there is the possibility of operating the lighting device 1 with half the maximum voltage, that is to say corresponding to FIG. 1 Separate carrier 2 in the middle, i.e. approximately half its length.
  • the required length of a lighting device 1 can thus be adapted particularly finely to a desired installation length determined by structural conditions. If a lighting device 1 is composed of a number of individual sections, this length adjustment only has to be carried out on the last section, so that only a single separated remnant remains. The remaining piece resulting from such a separation may vary Course of the conductor tracks 5 continue to be used and attached to another lighting device 1 for extension.
  • each show a circuit layout which can be implemented on a carrier, but which is not shown in each case.
  • both sections are constructed identically, so that they can be strung together in almost any number on a carrier 2 in order to create a correspondingly long LED strip or a correspondingly long LED strip.
  • the only difference between the first section of LEDs 4 mentioned and the one or more subsequent sections is that the voltage supply is fed in in the first section
  • FIG. 3 shows such a first section of LEDs 4, a voltage source 6 for feeding 12 V being connected to this section.
  • the section has four contact points 8 at the feed point, which are identified by the letters a to d.
  • the section again has four contact points 8, with the crossed course of the conductor tracks 5 contact points 8 being arranged in reverse order at the two opposite ends of the section.
  • the section can therefore be connected in one or the other orientation, rotated through 180 ° about its vertical axis, to a voltage source 6 or to other sections of a lighting device, the same unchanged functionality of this section being guaranteed at all times.
  • the LEDs 4 are arranged in four groups of three LEDs 4 each. Two of these groups consist of LEDs 4, which emit a warm white light, and the LEDs 4 of the other two groups emit a cool white light. These two different types of LEDs are connected in anti-parallel. By switching the direction of current flow, the section of an illumination device shown in FIG. 3 can therefore be operated either with warm white or with cold white light.
  • the two different color temperatures can be mixed.
  • practically any desired mixing results can be achieved.
  • the switching of the current flow direction takes place within the voltage source 6, so that even when using an infeed with only two conductors, the mixing of color temperatures of white LEDs 4 is possible, or the mixing of colors if LEDs 4 of different colors are used become.
  • the aforementioned mixture of light can be influenced by the user using a dimmer or a dedicated remote control.
  • FIG. 4 shows the same circuit layout between the opposing contact points 8, only the voltage source 6 provided in FIG. 3 being missing in FIG. 4 and, accordingly, the electrical conductors leading from the voltage source 6 to the contact points 8 shown on the left. Without a voltage supply, this section of a lighting device is referred to as a “subsequent section”, which can be connected to a section supplied with voltage, such as the first section shown in FIG. 3.
  • FIG. 5 shows the section of FIG. 4 in an arrangement rotated by 180 °. It is clear that the same assignment of the contact parts 8 with the conductor tracks 5 in accordance with the designations a to d is achieved as when the section of FIG. 4 is not rotated.
  • the subsequent sections can thus be strung together in any orientation and always enable the same function and thus a particularly simple handling in the manufacture or configuration of a lighting device 1 using these sections.
  • FIG. 6 shows almost the same circuit layout, ie the unchanged section as FIG. 3, the only change being the voltage source 6 used and the use of a bridge 9.
  • a voltage source with 24 V is provided, and in the technical configuration, this voltage source 6 is provided with a connector , which contains the bridge 9.
  • six LEDs 4 are combined in a row to form a group. switched, the warm white and the cold white LEDs 4 also being connected antiparallel in this case, so that the described light mixing is still possible unchanged.
  • 7 and 8 show the same follower group in the two different orientations as shown in FIGS. 4 and 5, whereby by connection to the first group of FIG. 6 operated with 24 V supply voltage these follower groups are also operated with 24 V. become.
  • FIGS. 9 and 10 the current flow through the two outer contact points a and d is reversed as in the exemplary embodiments in FIGS. 7 and 8, and also through the two middle contact points b and c the current flow is reversed as in FIGS 7 and 8 are shown.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un équipement d'éclairage (1), pourvu d'un support (2) et de plusieurs moyens d'éclairage réalisés sous forme de DEL (4) agencés sur le support (2), ainsi que de pistes conductrices (5) agencées sur le support (2) pour l'alimentation des DEL (4) en énergie électrique, les pistes conductrices (5) comportant la connexion à des positions de contact permettant une alimentation électrique, et les pistes conductrices (5) étant agencées de telle sorte que plusieurs DEL (4) sont respectivement connectées ensemble en un groupe qui est associé à un limiteur de courant et dans lequel les DEL (4) de ce groupe peuvent être alimentées en énergie électrique de manière commune. Selon l'invention, les pistes conductrices (5) sont agencées pour le fonctionnement avec une première tension de manière à réaliser des groupes identiques et traversés par le courant de manière antiparallèle, et deux pistes conductrices (5) peuvent être connectées au choix au moyen d'un pont (9), de telle sorte que des groupes de DEL (4) connectés en série sont réalisés et que, dans l'agencement de circuit relié par un pont, l'équipement d'éclairage (1) peut fonctionner avec une deuxième tension qui est supérieure à la première tension.
PCT/EP2019/069408 2018-08-08 2019-07-18 Équipement d'éclairage pouvant fonctionner en tension double Ceased WO2020030402A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202018104566.0U DE202018104566U1 (de) 2018-08-08 2018-08-08 Zweifach-spannungsfähige Beleuchtungseinrichtung
DE202018104566.0 2018-08-08

Publications (1)

Publication Number Publication Date
WO2020030402A1 true WO2020030402A1 (fr) 2020-02-13

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WO (1) WO2020030402A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
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PL3715702T3 (pl) 2019-03-28 2023-10-02 Stepan Engineering Gmbh Taśma LED na napięcie stale
DE102020001001A1 (de) * 2020-02-17 2021-08-19 LS Lighting Solutions GmbH LED-Streifen
DE202021106104U1 (de) * 2021-11-09 2023-02-10 Thorn Lighting Limited Leiterplatte für ein LED-Modul, LED-Modul und LED-Leuchten
DE102021130804A1 (de) 2021-11-24 2023-05-25 OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung Leuchtfolie, anzeigelement und verfahren zum betreiben einer leuchtfolie

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Publication number Priority date Publication date Assignee Title
CN2886978Y (zh) 2005-01-26 2007-04-04 重庆万道光电科技有限公司 汽车24v、12v通用led功能灯泡
JP2007173548A (ja) * 2005-12-22 2007-07-05 Rohm Co Ltd 発光装置及び照明器具
DE102006024607A1 (de) 2006-05-26 2007-11-29 Bayerische Motoren Werke Ag Leuchtsystem
EP2061991A1 (fr) * 2006-09-12 2009-05-27 Paul Lo Fil lumineux à diodes électroluminescentes monopièce formé d'un seul tenant
CN102065610A (zh) 2010-11-11 2011-05-18 奥迪通用照明(广州)有限公司 一种led灯控制电路
CN106912138A (zh) 2015-12-22 2017-06-30 天津工大海宇照明部品有限公司 一种12v/24v通用的led后组合灯发光体
EP3277056A1 (fr) 2016-07-27 2018-01-31 Toshiba Lighting & Technology Corporation Dispositif d'éclairage de véhicule et phare de véhicule

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2886978Y (zh) 2005-01-26 2007-04-04 重庆万道光电科技有限公司 汽车24v、12v通用led功能灯泡
JP2007173548A (ja) * 2005-12-22 2007-07-05 Rohm Co Ltd 発光装置及び照明器具
DE102006024607A1 (de) 2006-05-26 2007-11-29 Bayerische Motoren Werke Ag Leuchtsystem
EP2061991A1 (fr) * 2006-09-12 2009-05-27 Paul Lo Fil lumineux à diodes électroluminescentes monopièce formé d'un seul tenant
CN102065610A (zh) 2010-11-11 2011-05-18 奥迪通用照明(广州)有限公司 一种led灯控制电路
CN106912138A (zh) 2015-12-22 2017-06-30 天津工大海宇照明部品有限公司 一种12v/24v通用的led后组合灯发光体
EP3277056A1 (fr) 2016-07-27 2018-01-31 Toshiba Lighting & Technology Corporation Dispositif d'éclairage de véhicule et phare de véhicule

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